Potential investors courted by federal and state governments have rejected Australia, the world's sunniest continent, citing a lack of business incentives such as tax breaks and the nation's unwillingness to regulate in favour of renewable energy.

Are we behind the times, in terms of creating conducive conditions for renewable energy to flourish as a viable alternative to more 'traditional' sources?

Barack Obama's inauguration speech talked of ushering in a new era of peace and repairing America's standing with the rest of the world. Obama also faces the challenges of rebuilding the US economy and of global warming.

Are the expectations placed on America's 44th president too high? Do you think he can deliver on his promises? What did you think of his inauguration speech?

Have you been caught out in the commuter chaos? Have you opted for the car today, rather than risk cancellations and delays on the public transport network? Have your say about the city's transport woes.